MESON Chess Problem Database

Problem Display
PID: 65540 (R7/3p4/1P1N2p1/2p1k1P1/2P2N2/5p1Q/5K2/8 w - - 0 1)

Abela de la Torre, Aurelio

The Chess Monthly (Hoffer), 1880

R7/3p4/1P1N2p1/2p1k1P1/2P2N2/5p1Q/5K2/8

#2

8 + 5

5656 Sammlung Leichterer Schachaufgaben I (Dufresne) 1881
15148 Sadier Collection 2014
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qh8#
    • 1...Kxf4
      • 2.Qg3#
  • Tries
    • 1.Kxf3?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxd6!
    • 1.Ra1?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra2?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra3?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra4?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra5?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra6?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Ra7?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Rb8?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Rc8?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Re8+?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
        • 2.Qh4#
      • 1...Kxd6!
    • 1.Rf8?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxd6!
    • 1.Rg8?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Qf6#
      • 1...Kxd6
        • 2.Qf6#
      • 1...gxf5!
    • 1.Qxd7?
      • 1...Kd4
        • 2.Qg7#
      • 1...Kxf4!
    • 1.Qh2?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxd6!
    • 1.Qxf3?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxd6!
    • 1.Qh4?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxd6!
    • 1.Qh8+?
      • 1...Kxd6
        • 2.Qf6#
      • 1...Kxf4!
    • 1.b7?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6!
  • Keys
    • 1.Rd8!
      • 1...Kd4
        • 2.Qh8#
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kxd6
        • 2.Qe6#

This anticipates 195234(1918)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(B)
    • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB(B)
        • K(c);N_SPINP(b),OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • R(H);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);S_FLIGHT,XS(G)::QAR2(B)
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);XP(e)
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • Q(B);XP(a)
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(G)::QAR2(B)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
    • Try
      • P(F);
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
  • Actual
    • R(H);
    • Vars
      • K(c);S_FLIGHT::QAB(B)
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • K(c);P_SPINP(e),S_FLIGHT,XS(G)::QAR1(B)
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